Astro Micro Gear Box #709 Fits Astro 010 motors. The New Astro Micro Box for the Astro 010 brushless motor weighs only 1/2 ounce and fits all Astro 010 motors. The Gear ratio is 3.3 to 1 and it spins props from 8x6 to 10x7 on 8 to 10 NIMH cells or 2 to 3 lithium poly cells. The Gear Box is mounted to the motor with two screws and is mounted to the model with a single nut on the threaded barrel of the bearing housing right behind prop. Nothing could be simpler! The motor in this photo is for illustration only and is not included at this price.

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